Home / 684,379.38-1,027,456.50-458,122.53

Finding the Fourth Proportional to 684,379.38, 1,027,456.50 and 458,122.53

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Solution

The fourth proportional to 684,379.38, 1,027,456.50 and 458,122.53 is: 687,777.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,379.38 : 1,027,456.50 = 458,122.53 : x
  2. Step 2: Convert to fraction form
    684,379.38/1,027,456.50 = 458,122.53/x
  3. Step 3: Cross multiply
    684,379.38x = 1,027,456.50 × 458,122.53
  4. Step 4: Simplify right side
    684,379.38x = 470,700,971,244.95
  5. Step 5: Solve for x
    x = 470,700,971,244.95/684,379.38
  6. Step 6: Final answer
    x = 687,777.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.